81631216

素因数分解:

$2^4\times {\mathrm{1129}}^1\times {\mathrm{4519}}^1$

素因数の和:5656

約数の個数: 20

約数和(自身を含む): 158335600

約数和(自身を除く): 76704384

約数列:

[1, 2, 4, 8, 16, 1129, 2258, 4516, 4519, 9032, 9038, 18064, 18076, 36152, 72304, 5101951, 10203902, 20407804, 40815608, 81631216]

約数ペア:

[(1, 81631216), (2, 40815608), (4, 20407804), (8, 10203902), (16, 5101951), (1129, 72304), (2258, 36152), (4516, 18076), (4519, 18064), (9032, 9038)]